Toyota Tacoma (2015-2018) Service Manual: Problem Symptoms Table

Toyota Tacoma (2015-2018) Service Manual / Mirror / Power Mirror Control System / Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

HINT:

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Power Mirror Control System

Symptom	Suspected Area	See page
Driver Side Power Mirror cannot be Adjusted with Power Mirror Switch	Outer mirror switch assembly
	Outer rear view mirror assembly LH
	Outer rear view mirror assembly RH
	Wire harness or connector	-
Mirror Heater does not operate with Mirror Heater Switch	Proceed to "Mirror Heater does not Operate with Rear Defogger Switch"

Operation Check

OPERATION CHECK 1. CHECK REMOTE CONTROL MIRROR FUNCTION (a) Turn the ignition switch to ON. (b) With L on the mirror select switch selected, check that the outer rear view mirror assembly LH surf ...

Terminals Of Ecu

TERMINALS OF ECU 1. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY (for Automatic Air Conditioning) (See page ) 2. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY (for Manual Air Conditioning) (See page ) ...

Other materials:

Inspection
INSPECTION PROCEDURE 1. INSPECT BRAKE BOOSTER PUMP ASSEMBLY (a) Connect the positive (+) lead from the battery to the red cable of the pump, and the negative (-) lead to the black cable. (b) Check the brake booster pump operation. OK: Operation sound is heard. ...

Lost Communication with ECM / PCM "A" (U0100,U0104,U0122,U0125,U0126,U0129)
DESCRIPTION The millimeter wave radar sensor assembly and ECM communicate with each sensor and ECU via CAN communication. If any malfunction is detected in a CAN communication circuit, one or more CAN communication system DTCs are stored. DTC No. Detection Item ...

How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: Use these procedures to troubleshoot the power window control system. PROCEDURE 1. VEHICLE BROUGHT TO WORK SHOP NEXT 2. CUSTOMER ...